Dictionary > Serratia marcescens

Serratia marcescens

Definition
Noun
A gram-negative motile and non-endospore forming rod bacterium associated with hospital acquired infections including wound infections, catheter-associated infections and urinary tract infections.
Supplement
Serratia marcescens can be able to grow in temperature ranging from 4-40’C with a pH of about 5-9 which is distinct from other gram-negative bacteria due to its ability to carry out casein hydrolysis that allows to produce extracellular metalloproteinase. It also demonstrates citrate and tryptophan degradation producing pyruvic acid that is needed into different metabolic processes.
Serratia marcescens found normally in subgingival biofilm of teeth and in dirt places that produces prodigiosin, a reddish-orange tripyrrole pigment which cause staining of the teeth. It also cause infections in various body parts including respiratory tract, urinary tract, eyes and wounds as well as where it cause keratitis, endophthalmitis, conjunctivitis and tear duct infections.
Serratia marcescens is normally found in urinary and respiratory tracts of hospitalized individuals where it is apparent as a pink or orange discoloration with slimy film feeding off phosphorus containing materials like soap and shampoo deposits. It also used as biological markers of infections and is linked with primary invasive infection.
Scientific classification:
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Gamma Proteobacteria
Order: Enterobacteriales
Family: Enterobacteriaceae
Genus: Serratia
Species: Serratia marcescens
See also:
• Bacteria
• Nosocomial infections


You will also like...

Stem
Stems

Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

Young plant growing from the soil.
Soils

Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..

Genetic Mutations
Chromosome Mutations – II

This tutorial is a continuation of the first lesson on chromosomal mutation. Here, find out the chromosomal aberrations ..

An artist's depiction of the origin of amphibians
Amphibians & Early Reptiles

Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..

temperature - abiotic factor
Abiotic and Biotic Factors

This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..

Evolution of Life - Ancient Earth
Evolution of Life – Ancient Earth

Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..